Lausse



(No'ModeL) v J. P. E. 81; A. G. L. NIULAUSSB.

METALLIC JOINT FOR BOILERS. I

ted Nov. 26, 1895. r.

Paten ANDREW EGRAKANL FNm'O-UTNQWASNIHGTOMD C.

UNITED STATES PATENT OFFICE. I

JULES PIERRE ELIE NIOLAUSSE AND ALBERT GEORGES LOUIS NICLAUSSE,

' OF PARIS, FRANCE.

METALLIC JOINT FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 550,350, dated November26, 1895.

Application filedllugust 27,1895. Serial No. 560,649. (No model.)Patented in France May 18, 1893, No. 230,166, and in EnglandMay20,1893,N0.10,136.

To all whom it may concern:

Be it known that we, J ULEs PIERRE ELIE NroLAUssE and ALBERT GEoReEsLoUIs NIC- LAU SSE, citizens of France, residing at Paris,

France, have invented certain new and useful Improvements in MetallicJoints for Boilers and other Apparatus, (for which we have obtainedFrench Letters Patent No. 230,166, dated May 18, 1893, and EnglishLetters Pat- :0 ent No. 10,136, dated May 20, 1893;) and we do herebydeclare the following to be a full, clear, and exact description of ourinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Our invention has relation to a metallic joint for boilertubes and otherapparatus,and

in such connection it relates more particularly to the construction andarrangement of such a joint.

The principal objects of our invention are,

2 5 first, to provide a tight j ointbetween a boilertube and two or moreparallel plates supporting the same, and, second, to provide aboiler-tube having formed on its periphery conical shoulders, one ormore of which is or 0 are elastic and adapted to be forced into theopenings of the parallel plates supporting said tube to establish atight joint at those places.

Our invention consists of the combination and arrangement of partsdesignated to 3 5 carry into effect the above-mentioned objects,

substantially as hereinafter described and claimed.

The nature, characteristic features, and scope of our invention will bemore fully understood from the following description,taken in connectionwith the accompanying drawings, forming part hereof, in which Figure 1is a cross-section taken through two parallel plates of a boiler and atube secured therein, the tube embodying main features of our invention;and Fig. 2 is a simi-' lar View of a slightly-modified form of tube withour invention applied thereto.

Referring to the drawings, A represents a tube or any piece ofsubstantially-cylindrical form, and C and D represent two parallelplates or walls of a section of a boiler. On the end of the tube Aisformed at one end a conical flange, collar, or shoulder a, which ishollowed internally to make the same thin and elastic. On the tube A,and at a distance from the shoulder a slightly less than thedistancebetween the two walls 0 and D, is located another conicalflange, collar, or shoulder 1), which, when not established with an openend of the tube, is by preference made solid and inelastic. When thetube is driven to place, the elastic cone or will take its bearing firstand will yield until the solid cone 1) has taken its bearings, when bothjoints will become tight.

In the modification illustrated in Fig. 2 the tube A is open at bothends and the conical shoulders or and b are both elastic. Inthisconstruction, if in consequence either of the soarfing or theeffects of expansion there exists a slight difference in the length oftwo tubes between the plates, there will nevertheless be formed a tightjoint at either of the cones a or b. 5

The tube illustrated in Fig. l is slightly tapered near the end carryingthe flexible cone a, in order not to increase the diameter of the holein the plate when the space between the different holes does not allowof the size of these holes being larger than the tubes.

In both forms shown the conical shoulders point or taper in the samedirection.

Having thus described the nature and obj ects of our invention, what weclaim as new, and desire to secure by Letters Patent, is-

1. In combination with two or more perforated parallel boiler plates, atube adapted to be inserted in the perforations of said plates, theexterior of said tube being provided with conical bearing shoulderscorresponding in number with said plates, one or more of said shouldersbeing flexible and the taper of all the shoulders extending in the samedirection, substantially as described.

2. In combination with two parallel perforated boiler plates, a tubeadapted to be inserted in the perforations of said plates and having onits exterior at one end a flexible conical bearing shoulder and providedat a mo distance therefrom slightly less than the distance between saidplates with an external fixed conical shoulder, said shoulders adaptedto be driven into the perforations of said plates and the flexibleshoulder adapted to enter its perforation before the solid shoulder,substantially as described.

In testimony whereof we affix our signatures in presence of twowitnesses.

JULES PIERRE ELIE NICLAUSSE.

ALBERT GEORGES LOUIS NICLAUSSE. W'itnesses:

0. DE MEsTRAL, CLYDE SHROPSHIRE.

